Thomas Philip de Grey, 2nd Earl de Grey, 3rd Baron Grantham and 6th Baron Lucas, KG, PC, FRS (8 December 1781 – 14 November 1859), known as The Lord Grantham from 1786 to 1833, was a British Tory statesman of the 19th century.
Born Thomas Philip Robinson, his surname was Weddell from 1803 and de Grey from 1833.